In 1970, Soviet scientists embarked on an ambitious quest to dig into the Earth's crust, creating the world-renowned Kola Superdeep Borehole in the remote Murmansk Oblast, Russia. Stretching 12,262 ...

Scientists often claim that humanity understands more about distant planets than it does about the world beneath its own feet, and the Soviet Union’s Kola Superdeep Borehole became the most haunting ...

Atlas Obscura on Slate is a blog about the world's hidden wonders. Like us on Facebook, Tumblr, or follow us on Twitter @atlasobscura. How will you be celebrating on May 24, the 44th anniversary of ...

It is the deepest man-made hole on the planet - but after boring deep down into the earth, Russia was eventually forced to seal it up. The digging originally came about due to Cold War rivalry. As ...

Earth’s deepest artificial hole stretches 40,000 feet below the surface — and it’s only covered by a rusty metal lid. Russia’s Kola Superdeep Borehole was created by the Soviets in the name of science ...

The Kola Superdeep Borehole, a Soviet engineering project that occurred from the late 1960s to the early 1990s, is the deepest artificially created hole on Earth. Some of the rocks they drilled ...